I have an ES Standalone server running ver 4.X I do not think it's 4.6 Anyway when I try to run ES Administrator, either from my laptop or from the local machine I get the log on screen, I enter USER Name .... Click OK and I get a error window.

Error in receiving initialized data from the server. The program can not be started.

I did a quick backup. Any Ideas what this is?

And yes I can access other ES's with my laptop just fine. Just to try it I entered an incorrect password and got the screen telling me to check my user name and password.

I think the problem may be with you ES Admin Software then. Reistall